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Issue 15, 2018
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Synthesis of ultrathin two-dimensional organic–inorganic hybrid perovskite nanosheets for polymer field-effect transistors

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Abstract

In this study, free-standing phenylethylammonium lead halide perovskite (i.e. (PEA)2PbX4 (PEA = C8H9NH3, X = Cl, Br, and I)) nanosheets (NSs) with few-layer thickness were synthesized using a facile antisolvent method. The as-prepared (PEA)2PbX4 NSs could be well-dispersed in organic solvents such as toluene and hexane. By incorporating the (PEA)2PbX4 NSs into poly(3-hexylthiophene) (P3HT) in toluene, (PEA)2PbX4 NSs: P3HT composite films were fabricated as channel layers for field-effect transistors (FETs) through spin coating. All of the resultant FETs show promising hole transport and current saturation behaviour at room temperature. Notably, the FET based on (PEA)2PbI4 NSs: P3HT exhibited the best hole mobility, μh, of 1.43 × 10−1 cm2 V−1 s−1 and threshold voltage, Vth, of 5.19 V. These results pave a new way for the application of 2D organic–inorganic hybrid perovskite NSs as channel materials in high-performance FETs.

Graphical abstract: Synthesis of ultrathin two-dimensional organic–inorganic hybrid perovskite nanosheets for polymer field-effect transistors

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Publication details

The article was received on 18 Jan 2018, accepted on 06 Mar 2018 and first published on 07 Mar 2018


Article type: Paper
DOI: 10.1039/C8TC00289D
Citation: J. Mater. Chem. C, 2018,6, 3945-3950
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    Synthesis of ultrathin two-dimensional organic–inorganic hybrid perovskite nanosheets for polymer field-effect transistors

    L. Zhu, H. Zhang, Q. Lu, Y. Wang, Z. Deng, Y. Hu, Z. Lou, Q. Cui, Y. Hou and F. Teng, J. Mater. Chem. C, 2018, 6, 3945
    DOI: 10.1039/C8TC00289D

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